Home / 3,919,647.46-5,877,182.12-1,520,688.82

Finding the Fourth Proportional to 3,919,647.46, 5,877,182.12 and 1,520,688.82

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Solution

The fourth proportional to 3,919,647.46, 5,877,182.12 and 1,520,688.82 is: 2,280,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919,647.46 : 5,877,182.12 = 1,520,688.82 : x
  2. Step 2: Convert to fraction form
    3,919,647.46/5,877,182.12 = 1,520,688.82/x
  3. Step 3: Cross multiply
    3,919,647.46x = 5,877,182.12 × 1,520,688.82
  4. Step 4: Simplify right side
    3,919,647.46x = 8,937,365,142,987.90
  5. Step 5: Solve for x
    x = 8,937,365,142,987.90/3,919,647.46
  6. Step 6: Final answer
    x = 2,280,145.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.